Recurring dreams often reflect unresolved emotions or conflicts in our waking life. In your case, the dream of talking to a man behind your husband’s back suggests feelings of attraction and desire for emotional or physical connection that you may not be experiencing in your current relationship. The fact that these interactions are flirty and sexual indicates a longing for excitement or passion that you might feel is lacking.

Your husband's past infidelity in real life plays a significant role in your dream. It seems to have impacted your feelings of trust and security within your relationship. The dream may be a way for your subconscious to explore feelings of resentment or frustration regarding your husband's actions. The presence of the unknown man could symbolize the qualities you wish to experience in a relationship, or a desire for something new and different.

The frustration and resentment you feel when interrupted by your husband in the dream could signify a struggle between your desires and the reality of your commitments. It might be worth reflecting on what you truly want in your relationship and how your husband's past affects your feelings and choices moving forward.

Consider using these dreams as an opportunity for self-reflection. Are there aspects of your relationship that need addressing? How do you feel about your husband's past actions, and how do they influence your current feelings? Open communication with your husband may help clarify your feelings and foster a better understanding between you both.